Description:Jennifer Lawrence takes some jabs at her fellow best actress nominees during her Saturday Night Live opening monologue, best actor contender Hugh Jackman shows up on Letterman as a singing Lincoln, Bradley Cooper shocks Ellen DeGeneres with his multiple nipples, and more! The Oscar nominees have been causing a ruckus on the talk-show scene during award season, so we're bringing you the top five most hilarious moments from late night and daytime.(3:31)